{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Sequence analysis of a 1 . 5 - kb fragment of the Acsl4 promoter revealed the absence of a TATA box and the presence of many putative binding sites for transcription factors including Sp1 and CREB ."}
{"Chemical": []}